The Civic Si Coupe HFP is also the first product on which HFP has collaborated with Honda's in-house racing arm, Honda Performance Development (HPD) to test and verify the package's performance improvements on the track compared with those of the stock Si. According to Honda, the relationship between the two will further strengthen on future products.

To dress up the outside, the HFP kit includes a front lip spoiler, side sills and a rear bumper underbody spoiler, while the interior gains LED ambient lighting. The entire package retails for $4,244 and carries a three-year/36,000-mile warranty when installed at the time of the new-car purchase.

For the track warriors, Honda had a race-prepped 2012 Civic Si coupe prepared by Compass360 Racing, which had its first shakedown run at the World Challenge season finale at Road Atlanta in September. In hopes of expanding its racing presence, HPD will offer the Civic coupe body-in-white for $3,500, which will save potential Civic Si racers from having to purchase a fully equipped stock vehicle and tear it apart. To date, Honda has sold close to 10 bodies, which can be fully built up through HPD's parts catalog that includes engines built by longtime Honda/Acura racers RealTime Racing out of Wisconsin.

Finally, Honda showed off an Accord coupe V6 concept outfitted with the HFP package with upgraded suspension, body kit and rims. The concept part of the equation comes from a HPD-tuned supercharger, intake and exhaust system. Estimated output figures according to Honda come in at 333 hp and 285 lb-ft of torque, which is up from the stock V6's output of 271 hp and 254 lb-ft of torque.